Php 将数组中的值转换为另一个多维数组
目前,这是我的代码,但不起作用:Php 将数组中的值转换为另一个多维数组,php,multidimensional-array,grouping,array-column,Php,Multidimensional Array,Grouping,Array Column,目前,这是我的代码,但不起作用: //$queryBalance is the array received from an sql select foreach ($queryBalance as $index => $runrows){ $val = $runrows->balance; $val = str_ireplace(".","",$val); $val = str_ireplace(",",".",$val); //echo($i.'
//$queryBalance is the array received from an sql select
foreach ($queryBalance as $index => $runrows){
$val = $runrows->balance;
$val = str_ireplace(".","",$val);
$val = str_ireplace(",",".",$val);
//echo($i.' - '.$runrows->id_month.' ; ');
//$valor = $runrows->id_month == $i ? $val : 'Null';
if($i > $monthFim){
$i = $monthInicio-1;
array_push($balanceArray, $balanceTeste);
echo('('.$i.' - '.$runrows->id_month.'); ');
//dd('('.$balanceArray.' - '.$balanceTeste.'); ');
}else{
array_push($balanceTeste, $valor);
}
$i++;
}
我想转换此输入数组($queryBalance
):
在这里(索引名称无关紧要,我把它放在这里是为了举例说明逻辑:
基本上,我希望按年度和月份分组以获得余额
ps:数据将始终按顺序排列
(*声明为键以确保它们是唯一的)
$queryBalance
直到其为空/用尽。(*如果需要重新使用原始
$queryBalance
请复制一份。)$queryBalance
的第一个子数组指定为下一行的变量$uniques
中的预期日期对与$first
日期对相同,则移除第一个子数组(通过数组\u shift()
)并存储余额;否则存储NULL
,不修改$queryBalance
$temp
是一个“批处理”数组。foreach循环完成后,批处理就可以转移到$result
array (
0 =>
array (
0 => '-257,21',
1 => '-257,21',
2 => '-257,21',
3 => '166,66',
),
1 =>
array (
0 => '55',
1 => NULL,
2 => '0',
3 => '55',
),
2 =>
array (
0 => '-22257,21',
1 => '-64609,14',
2 => '-64609,14',
3 => '-12234,89',
),
)
我的第二种方法应该更适合你的任务。
array:3 [
0 => {
"balance_month1_year2018": "-257,21"
"balance_month2_year2018": "-257,21"
}
1 => {
"balance_month1_year2018": "0"
"balance_month2_year2018": "0"
}
2 => {
"balance_month1_year2018": "-64609,14"
"balance_month2_year2018": "-64609,14"
}
]
$queryBalance=[
(object)["balance"=>"-257,21","id_month"=>12,"year"=>"2017"],
(object)["balance"=>"-257,21","id_month"=>1,"year"=>"2018"],
(object)["balance"=>"-257,21","id_month"=>2,"year"=>"2018"],
(object)["balance"=>"166,66","id_month"=>3,"year"=>"2018"],
(object)["balance"=>"55","id_month"=>12,"year"=>"2017"],
//(object)["balance"=>"0","id_month"=>1,"year"=>"2018"],
(object)["balance"=>"0","id_month"=>2,"year"=>"2018"],
(object)["balance"=>"55","id_month"=>3,"year"=>"2018"],
(object)["balance"=>"-22257,21","id_month"=>12,"year"=>"2017"],
(object)["balance"=>"-64609,14","id_month"=>1,"year"=>"2018"],
(object)["balance"=>"-64609,14","id_month"=>2,"year"=>"2018"],
(object)["balance"=>"-12234,89","id_month"=>3,"year"=>"2018"]
];
foreach($queryBalance as $row){
$uniques[$row->year.'-'.$row->id_month]=NULL; // determine all unique date groups
}
while($queryBalance){
$temp=[];
foreach($uniques as $date=>$null){
$first=current($queryBalance); // cache the element that is currently first in $queryBalance
$temp[]=($date==$first->year.'-'.$first->id_month) ? array_shift($queryBalance)->balance : NULL; // extract from array, or store NULL without modifying $queryBalance
}
$result[]=$temp;
}
var_export($result);
array (
0 =>
array (
0 => '-257,21',
1 => '-257,21',
2 => '-257,21',
3 => '166,66',
),
1 =>
array (
0 => '55',
1 => NULL,
2 => '0',
3 => '55',
),
2 =>
array (
0 => '-22257,21',
1 => '-64609,14',
2 => '-64609,14',
3 => '-12234,89',
),
)